I don't mean to bump an old topic, but I just wanted to say that LU plays beautifully on my tablet. I currently own a Microsoft Surface with Windows 8 Pro. I wish there was an on screen "gaming keyboard" instead of the default Windows 8 keyboard. The only reason I can still play is because the Surface has a snap-in keyboard (you might have seen the commercials that show it off).
Now we just need LU for the Android/iOS version of GTA III. It would be awesome to play it anywhere, like on the bus or while waiting at the doctor's office or something.